2017 FC 350 Bore - To hone or not to hone

fullysicmate
Edited Date/Time 4/16/2020 11:53am

Hi All,

See attached pics of my FC 350 insides, looks good to me, not sure I should even hone it. Piston to bore clearance is 0.08mm or 3.1thou so will go 1 up on the piston size. Any advice appreciated.

94hrs on bike.

Thanks



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kb228
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kb228 4/14/2020 6:51am
4/14/2020 6:51am
Run a ball hone through it. Will put your hatching back in without removing material
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c0ncEpT
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c0ncEpT 4/14/2020 9:46am
4/14/2020 9:46am
kb228 wrote:
Run a ball hone through it. Will put your hatching back in without removing material
Exactly what I would do.

Dust it with a few strokes to add some cross hatch to the bore without removing material.

Basically give it a fresh finish for the rings and let it ride.
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Matt_B_#57
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Matt_B_#57 4/16/2020 11:53am
4/16/2020 11:53am
My 2016 350SX-F looked like that as well but I thought it would be good to give it a quick hone so I did. I would assume that after that many hours, you would still have a small glazing layer that isn’t visible with the naked eye but could affect oil distribution in the cylinder.

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